The 28-year-old Pollard, who has been with the Ravens for the past two seasons, sent out a tweet around 10:20 a.m. Wednesday, saying, "Well Raven Nation it's been fun. My time in Baltimore is done... Thank you!"

The move will reportedly save the Ravens $1 million toward the salary cap.

In his two seasons with the Ravens, Pollard had 173 tackles, three forced fumbles and two interceptions during the regular season. His forced fumble in this season's AFC Championship game provided a huge momentum swing for the Ravens, who went on to win the Super Bowl.

Before coming to the Ravens in 2011, Pollard spent two years with the Houston Texans and three years with the Kansas City Chiefs.

It's just another shake-up for the team this week, which also saw the trade of wide receiver Anquan Boldin to the San Francisco 49ers for a sixth-round draft pick. Boldin was considered a huge playmaker during the team's Super Bowl-winning run.

The Ravens also lost linebacker Dannell Ellerbe to free agency on Tuesday afternoon. Ellerbe will now head to Miami to join the Dolphins.

Sources with the Associated Press said Tuesday afternoon that linebacker Paul Kruger has reached an agreement with the Cleveland Browns. Kruger led the Ravens in sacks last season.

Aside from those changes, the team will also be without superstar linebacker Ray Lewis, who retired after his second Super Bowl win this year.

The roster moves come after quarterback Joe Flacco signed a record-breaking six-year, $120.6 million contract with the Ravens earlier this month, making him the highest-paid quarterback in the NFL. Flacco threw three touchdowns to lead the Ravens to a Super Bowl victory over the 49ers last month. The 28-year-old threw 11 touchdowns and no interceptions in the playoffs.

Images: Ravens lead Super Bowl victory parade

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Baltimore hosts a victory parade for the Super Bowl champion Ravens, who drew hundreds of thousands of people to the city to help celebrate.

Daniel Norris took a three-hitter into the eighth inning in his Detroit debut, J.D. Martinez hit a three-run homer and the Tigers beat the Baltimore Orioles 6-1 on Sunday to earn a split of the four-game series.